C# Discussion Boards - CodeProject

Re: Listviewcontrol and background color

Wendelius30-Aug-08 8:57

Wendelius

30-Aug-08 8:57

I tested clicking and refreshing with the code I posted and no problems. Test case was:

private void listView1_ItemSelectionChanged(object sender, ListViewItemSelectionChangedEventArgs e) {
   foreach (ListViewItem lvItem in listView1.Items) {
      lvItem.BackColor = Color.Purple;
   }
   listView1.Refresh();
}

If I understood correctly, this would be similar to your case

So I suspect that the problem is somehow in the loop where you define (and possibly reset) the colors for each item.

Re: Listviewcontrol and background color

Yustme30-Aug-08 10:50

Yustme

30-Aug-08 10:50

Hi,

I forgot to mention that i have to use delegates to access the listview control. I only assign the color at one place.

That shouldn't be the problem right?

Re: Listviewcontrol and background color

Wendelius30-Aug-08 11:05

Wendelius

30-Aug-08 11:05

Delegates themselves are not the problem. However if you receive events in a wrong order, that could cause the problem (event to set colors before event to reset colors etc).

Use debugger to confirm that your code is run in desired order. You could also use conditional breakpoints so that whenever a listviewitems background color changes, the debugger breaks. That could give you idea what's going wrong.

Re: Listviewcontrol and background color

Yustme30-Aug-08 22:08

Yustme

30-Aug-08 22:08

Hi,

The coloring of the items happens in another class. The listview control is passed by ref to that other class.

It shouldn't be a problem if i don't color the items in the Form class right?

The delegates run in the right order.

Re: Listviewcontrol and background color

Wendelius30-Aug-08 22:27

Wendelius

30-Aug-08 22:27

No, that isn't a problem as long as you work with the original ListViewItems (i.e. don't make copies).

Did you try to break on refresh or use conditional breakpoints. I believe they would clarify this greatly.

Re: Listviewcontrol and background color [modified]

Yustme31-Aug-08 0:14

Yustme

31-Aug-08 0:14

Hi,

I did both, the colors really get assigned. But they are just not visible. If i minimize the window and bringing it back to front, i can see the colors but disappear really fast again.

[EDIT 12:33h]

Hi,

It seems that i managed to fix this a bit. I created a paint event from the Form.

I do all the coloring stuff in there now. It seems that it keeps the colors, but if i select an item, it loses its color.

If i use the selectedIndexChanged event for the listview control, and i select an item, i lose all the colors on every item.

I need a way to call the Paint event inside the selectedIndexChanged event of the listview control. This might do the trick.

I tried this: this.frmMain_Paint(this.listviewcontrol, null);

But that didn't work...

[/Edit]

modified on Sunday, August 31, 2008 6:33 AM

Re: Listviewcontrol and background color

Wendelius31-Aug-08 1:29

Wendelius

31-Aug-08 1:29

For some reason the coloring is reset after you assign the color. Did the example I posted work corectly? If it did, I suggest that you comment code out so that you get painting correclty and then try to bring back code only in small pieces.

Also check the form's DoubleBuffered property. I believe it should be false.

non-rectangular window

TerRO_GirL29-Aug-08 23:54

TerRO_GirL

29-Aug-08 23:54

i have this non rectangular window (spline-shaped) :

using System;
using System.Windows.Forms;
using System.Drawing;
using System.Drawing.Drawing2D;

namespace Guitar
{
    class GuitarForm : Form
    {
        Bitmap bmp;
        GuitarForm()
        {
            
          //  this.FormBorderStyle = FormBorderStyle.None; 
            bmp = new Bitmap("C:\\ok.jpg");
            GraphicsPath gp = new GraphicsPath();

           
            Point[] curves = new Point[]{
new Point(93,99), new Point(200, 55),
new Point(328, 128),new Point(450,100),new Point(560,200),
};
            gp.AddCurve(curves);
            gp.AddLine(560,200, 560, 500);
            gp.AddLine(560, 500, 93, 500);
            gp.AddLine(93, 500, 93, 99);
            gp.CloseFigure();




            this.Region = new Region(gp);
        }

        protected override void OnPaint(PaintEventArgs ea)
        {
            base.OnPaint(ea);
            Graphics g = ea.Graphics;
            g.DrawImage(bmp, new Point(0, 0));
            Rectangle scaled = new Rectangle(20, 20, 60, 60);
            g.DrawImage(bmp,scaled);
            g.DrawRectangle(Pens.Red, scaled);
            Point[] pGram = new Point[]{
new Point(50, 10),
new Point(100, 30),
new Point(20, 100),
};
            g.DrawImage(bmp, pGram);
        }


        public static void Main()
        {
            Application.Run(new GuitarForm());
        }

    
        private void InitializeComponent()
        {
            this.SuspendLayout();
            // 
            // GuitarForm
            // 
            this.ClientSize = new System.Drawing.Size(560, 560);
            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
            this.Name = "GuitarForm";
            this.ResumeLayout(false);

        }
      
    }///:~
}

the problem is that when i run it, only one part of the window appears and i have to drag to brders in order to see the whole shape . Is there any way it can run all-ready sized the way i want it ?

Re: non-rectangular window

MarkB77730-Aug-08 0:50

MarkB777

30-Aug-08 0:50

Could it be something as simple as this.Size = ...?

Mark Brock
"We're definitely not going to make a G or a PG version of this. It's not PillowfightCraft." -- Chris Metzen
Click here to view my blog

Re: non-rectangular window

TerRO_GirL30-Aug-08 5:42

TerRO_GirL

30-Aug-08 5:42

Simple things always get me Blush | :O

Thank you , Mark! Smile | :)

Combobox event

vasusoftsol29-Aug-08 23:15

vasusoftsol

29-Aug-08 23:15

Hi ,

Is there any event for both the textchange and selectindexchange in combobox
{that event must fire when we made any change in the text as well as selectindexchange

Re: Combobox event

Anthony Mushrow29-Aug-08 23:38

Anthony Mushrow

29-Aug-08 23:38

There isn't, but just use both events and keep track of them yourself, like:

bool textChanged = false;
bool indexChanged = false;

void TextChanged()
{
  if(!indexChanged)
    textChanged = true;
  else {
    indexChanged = false
    EventsFired();
  }
}

void IndexChanged()
{
  if(!textChanged)
    indexChanged = true;
  else {
    textChanged = false
    EventsFired();
  }

}

void EventsFired()
{
  //Main code
}

My current favourite word is: I'm starting to run out of fav. words!

-SK Genius

Game Programming articles start -here[^]-

Re: Combobox event

Mbah Dhaim30-Aug-08 10:50

Mbah Dhaim

30-Aug-08 10:50

there are no events for handle both events,
specify event handler like this:

this.comboBox1.SelectedIndexChanged += new System.EventHandler(this.comboBox1_SelectedIndexChanged);
this.comboBox1.TextChanged += new System.EventHandler(this.comboBox1_SelectedIndexChanged);

then you perfom actions in

private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
  // do something
}

this done because both events are apply from System.EventHandler

dhaim
programming is a hobby that make some money as side effect Smile | :)

stencil bar in ms visio

tahir_makhdoom29-Aug-08 23:14

tahir_makhdoom

29-Aug-08 23:14

how can i create new stencil bar in ms visio using c#.net and save, open, new file

tahir

Re: stencil bar in ms visio

Abisodun30-Aug-08 9:01

Abisodun

30-Aug-08 9:01

Have you tried the Visio Developer newsgroup?

http://www.microsoft.com/communities/newsgroups/en-us/default.aspx?dg=microsoft.public.visio.developer&lang=en&cr=US[^]

invoices .. print to specefic Point or RDLC?

Jassim Rahma29-Aug-08 22:18

Jassim Rahma

29-Aug-08 22:18

I have a pre-printed invoices on dot matrix and i want to print the customers' invoices on it...

which method is best? printing to specefic point or use RDLC?

Re: invoices .. print to specefic Point or RDLC?

Naji El Kotob26-Oct-09 4:03

Naji El Kotob

26-Oct-09 4:03

Hi,

You don't need a complicated algo. here, RDLC is more than enough.

good luck,

NajiCo http://www.InsideVB.NET[^]

It's nice 2b important, but it's more important 2b nice...
http://www.facebook.com/group.php?gid=5932660937[^]

problem in binded columns to DataGridView

Jassim Rahma29-Aug-08 22:16

Jassim Rahma

29-Aug-08 22:16

I binding the following to a datagrid:

private void get_all_vehicles()

{

    dataVehicles.DataBindings.Clear();



    data_table = new DataTable();

    sql_connection = new SqlConnection("Data Source=.\\SQLEXPRESS;initial catalog=rent_a_car_company;integrated security=true");

    // sql_connection = new SqlConnection(public_var.sql_connection);

    sql_command = new SqlCommand("sp_populate_all_vehicles", sql_connection);

    sql_command.CommandType = CommandType.StoredProcedure;

    sql_adapter = new SqlDataAdapter(sql_command);

    sql_adapter.Fill(data_table);

    dataVehicles.DataSource = data_table;



    dataVehicles.Columns["vehicle_id"].HeaderText = "ID";

    dataVehicles.Columns["vehicle_id"].DefaultCellStyle.Alignment = DataGridViewContentAlignment.TopCenter;

    dataVehicles.Columns["vehicle_id"].Width = 160;

    dataVehicles.Columns["vehicle_id"].Visible = false;



    dataVehicles.Columns["vehicle_photo"].HeaderText = "Photo";

    dataVehicles.Columns["vehicle_photo"].DefaultCellStyle.Alignment = DataGridViewContentAlignment.TopCenter;

    dataVehicles.Columns["vehicle_photo"].Width = 160;

    // dataVehicles.Columns["vehicle_photo"].DataGridView.



    dataVehicles.Columns["vehicle_make"].HeaderText = "Vehicle";

    dataVehicles.Columns["vehicle_make"].DefaultCellStyle.Alignment = DataGridViewContentAlignment.TopCenter;

    dataVehicles.Columns["vehicle_make"].Width = 160;





    dataVehicles.Columns["vehicle_number"].HeaderText = "Number#";

    dataVehicles.Columns["vehicle_number"].DefaultCellStyle.Alignment = DataGridViewContentAlignment.TopLeft;

    dataVehicles.Columns["vehicle_number"].Width = 200;



    dataVehicles.Columns["category_name"].HeaderText = "Category";

    dataVehicles.Columns["category_name"].DefaultCellStyle.Alignment = DataGridViewContentAlignment.TopLeft;

    dataVehicles.Columns["category_name"].HeaderCell.Style.Alignment = DataGridViewContentAlignment.MiddleLeft;

    dataVehicles.Columns["category_name"].Width = 120;



    dataVehicles.Columns["vehicle_shift"].HeaderText = "Shift";

    dataVehicles.Columns["vehicle_shift"].DefaultCellStyle.Alignment = DataGridViewContentAlignment.TopLeft;

    dataVehicles.Columns["vehicle_shift"].HeaderCell.Style.Alignment = DataGridViewContentAlignment.MiddleLeft;

    dataVehicles.Columns["vehicle_shift"].Width = 120;



    dataVehicles.Columns["vehicle_rent_daily"].HeaderText = "Daily Rent";

    dataVehicles.Columns["vehicle_rent_daily"].DefaultCellStyle.Alignment = DataGridViewContentAlignment.TopLeft;

    dataVehicles.Columns["vehicle_rent_daily"].HeaderCell.Style.Alignment = DataGridViewContentAlignment.MiddleLeft;

    dataVehicles.Columns["vehicle_rent_daily"].DefaultCellStyle.Format = "#,###,###,##0.000";

    dataVehicles.Columns["vehicle_rent_daily"].Width = 120;



    sql_command.Dispose();

    sql_adapter.Dispose();

    sql_connection.Close();

}

also I am binding the following if the user clicked the vehicles out button:

private void get_vehicles_out()

{

    dataVehicles.DataBindings.Clear();



    data_table = new DataTable();

    sql_connection = new SqlConnection("Data Source=.\\SQLEXPRESS;initial catalog=rent_a_car_company;integrated security=true");

    // sql_connection = new SqlConnection(public_var.sql_connection);

    sql_command = new SqlCommand("sp_populate_vehicles_out", sql_connection);

    sql_command.CommandType = CommandType.StoredProcedure;

    sql_adapter = new SqlDataAdapter(sql_command);

    sql_adapter.Fill(data_table);

    dataVehicles.DataSource = data_table;



    dataVehicles.Columns["vehicle_id"].HeaderText = "ID";

    dataVehicles.Columns["vehicle_id"].DefaultCellStyle.Alignment = DataGridViewContentAlignment.TopCenter;

    dataVehicles.Columns["vehicle_id"].Width = 160;

    dataVehicles.Columns["vehicle_id"].Visible = false;



    dataVehicles.Columns["vehicle_photo"].HeaderText = "Photo";

    dataVehicles.Columns["vehicle_photo"].DefaultCellStyle.Alignment = DataGridViewContentAlignment.TopCenter;

    dataVehicles.Columns["vehicle_photo"].Width = 160;

    dataVehicles.Columns["vehicle_photo"].Visible = false;



    dataVehicles.Columns["out_category"].HeaderText = "Status";

    dataVehicles.Columns["out_category"].DefaultCellStyle.Alignment = DataGridViewContentAlignment.TopCenter;

    dataVehicles.Columns["out_category"].Width = 160;



    dataVehicles.Columns["vehicle_make"].HeaderText = "Vehicle";

    dataVehicles.Columns["vehicle_make"].DefaultCellStyle.Alignment = DataGridViewContentAlignment.TopCenter;

    dataVehicles.Columns["vehicle_make"].Width = 160;



    dataVehicles.Columns["vehicle_make"].HeaderText = "Vehicle";

    dataVehicles.Columns["vehicle_make"].DefaultCellStyle.Alignment = DataGridViewContentAlignment.TopCenter;

    dataVehicles.Columns["vehicle_make"].Width = 160;



    dataVehicles.Columns["vehicle_number"].HeaderText = "Number#";

    dataVehicles.Columns["vehicle_number"].DefaultCellStyle.Alignment = DataGridViewContentAlignment.TopLeft;

    dataVehicles.Columns["vehicle_number"].Width = 200;



    dataVehicles.Columns["category_name"].HeaderText = "Category";

    dataVehicles.Columns["category_name"].DefaultCellStyle.Alignment = DataGridViewContentAlignment.TopLeft;

    dataVehicles.Columns["category_name"].HeaderCell.Style.Alignment = DataGridViewContentAlignment.MiddleLeft;

    dataVehicles.Columns["category_name"].Width = 120;

    dataVehicles.Columns["category_name"].Visible = false;



    dataVehicles.Columns["vehicle_shift"].HeaderText = "Shift";

    dataVehicles.Columns["vehicle_shift"].DefaultCellStyle.Alignment = DataGridViewContentAlignment.TopLeft;

    dataVehicles.Columns["vehicle_shift"].HeaderCell.Style.Alignment = DataGridViewContentAlignment.MiddleLeft;

    dataVehicles.Columns["vehicle_shift"].Width = 120;

    // dataVehicles.Columns["category_name"].Visible = false;



    dataVehicles.Columns["vehicle_rent_daily"].HeaderText = "Daily Rent";

    dataVehicles.Columns["vehicle_rent_daily"].DefaultCellStyle.Alignment = DataGridViewContentAlignment.TopLeft;

    dataVehicles.Columns["vehicle_rent_daily"].HeaderCell.Style.Alignment = DataGridViewContentAlignment.MiddleLeft;

    dataVehicles.Columns["vehicle_rent_daily"].DefaultCellStyle.Format = "#,###,###,##0.000";

    dataVehicles.Columns["vehicle_rent_daily"].Width = 120;

    dataVehicles.Columns["vehicle_rent_daily"].Visible = false;



    sql_command.Dispose();

    sql_adapter.Dispose();

    sql_connection.Close();

}

and if you noticed, the only differnce is the column out_category which i am adding in the second code.

Now, the problem is: when the user clicks on the button displaying the first list then everything is fine but when the user clicks on the button invoking the second code it will just add the out_category column to the end which means it using the first codeand adding the out_category column when it should place the out_category column before the vehicle_make column.

so where is the problem?

Re: problem in binded columns to DataGridView

leppie29-Aug-08 22:51

leppie

29-Aug-08 22:51

You need to clear the columns too I think.

xacc.ide - now with TabsToSpaces support
IronScheme - 1.0 alpha 4a out now (29 May 2008)

Re: problem in binded columns to DataGridView

Jassim Rahma29-Aug-08 22:53

Jassim Rahma

29-Aug-08 22:53

well, i only tried clearing the columns after facing this problem but it didn't solve it.

Re: problem in binded columns to DataGridView

Wendelius30-Aug-08 4:57

Wendelius

30-Aug-08 4:57

If I'm reading this correctly, you don't add columns on-the-fly, but use predefined columns and modify their properties (unless binding creates them). If that's the case, change the column order when adding columns to DataGridViewColumnCollection.

If the columns are added automatically by binding, change the order of columns in sp returning the result set or modify the order after population.

Hope this helps,

Mika

Re: problem in binded columns to DataGridView

Jassim Rahma30-Aug-08 8:22

Jassim Rahma

30-Aug-08 8:22

i hav already did that before posting this question.. here is my stored proceedure:

SELECT     vehicles.vehicle_id, vehicles.vehicle_photo,
out_category = CASE vehicles.out_category
WHEN 'S' THEN 'STAFF'
WHEN 'C' THEN 'CUSTOMER'
WHEN 'R' THEN 'SERVICE'
WHEN 'W' THEN 'WORKSHOP'
END
, vehicle_makes.vehicle_make + ' '  + vehicle_brands.vehicle_brand + ' ' + LTRIM(STR(vehicles.vehicle_year)) AS vehicle_make, registration_types.registration_type + ' ' + vehicles.vehicle_registration_number AS vehicle_number, vehicle_category.category_name, 
                      vehicle_shifts.vehicle_shift, vehicles.vehicle_rent_daily
FROM         vehicles INNER JOIN
                      branches ON vehicles.branch_id = branches.branch_id INNER JOIN
                      vehicle_category ON vehicles.vehicle_category = vehicle_category.category_id INNER JOIN
                      vehicle_makes ON vehicles.vehicle_make = vehicle_makes.vehicle_make_id INNER JOIN
                      vehicle_brands ON vehicles.vehicle_brand = vehicle_brands.vehicle_brand_id INNER JOIN
                      registration_types ON vehicles.vehicle_registration_type = registration_types.registration_type_id INNER JOIN
                      vehicle_shifts ON vehicles.vehicle_shift = vehicle_shifts.vehicle_shift_id
WHERE vehicles.is_vehicle_out = 'True'

Re: problem in binded columns to DataGridView

Wendelius30-Aug-08 8:31

Wendelius

30-Aug-08 8:31

Ok, but most important: Are the columns already defined for dataVehicles before setting the DataSource?

Re: problem in binded columns to DataGridView

Jassim Rahma30-Aug-08 8:36

Jassim Rahma

30-Aug-08 8:36

no.. it's auto defined

i am using the auto defined columns for long time but this is the first time i face such a problem.

Re: problem in binded columns to DataGridView

Wendelius30-Aug-08 8:48

Wendelius

30-Aug-08 8:48

Before setting the DataSource for dataVehicles, use the debugger and check that the data_table is holding columns in right order (the order you have defined in sp), just in case that they arrive correctly.

If that doesn't explain this, add following lines before setting datasource to test if any of them help:

...
sql_adapter.Fill(data_table);            
dataVehicles.DataSource = null;
dataVehicles.Columns.Clear();
dataVehicles.ResetBindings();
dataVehicles.DataSource = data_table;
...

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.